SOUTH HADLEY – The Planning Board and Conservation Commission are scheduled to meet jointly and convene a public hearing to discuss the stormwater management plan involving Rivercrest Condominiums LLC’s controversial proposal to build about 30 units off of Ferry St.

The meeting planned for Tuesday at town hall auditorium starts at 7 p.m.

Documents released by the town show that the South Hadley planning director recommends that the Tuesday night hearing run for two hours, and be continued until September.

The Planning Board is expected to hire a “peer review” consultant who would be charged with evaluating the company’s stormwater management plan. The cost would be borne by Rivercrest.

Records show the town solicited bids from six firms to do the consulting work.

Conservation Commission agent Janice Stone and Town Planner Richard Harris are expected to make a recommendation to the Planning Board on who should do that work.

The Planning Board granted Rivercrest a special permit to build the condominums earlier this year. However, the board attached conditions to that permit which requires the company to show that their stormwater management plan comports with town bylaws.

Rivercrest says that should the Planning Board reject the application, the company will go forward with a 60-unit proposal instead, in accordance with the state's controversial 40-B law.

The 40B hearings are under the auspices of the Zoning Board of Appeals.

The ZBA unanimously voted to require Rivercrest to provide the board “full details” of their 60 unit proposal by June 16.

The company did not provide the ZBA that information, saying the ZBA deadline would in no way compromise their rights to furnish the information at a later date. The ZBA is scheduled to meet on July 31.